Detectives looking for clues at a U.K. children's home at the center of an abuse investigation were thrown off-track by what they believed were shallow graves — but turned out to be a faux cemetery dug for a 1980s-era TV show set, The Daily Mail reported Wednesday.

The field behind the Haut de la Garenne children's home in Jersey, U.K., was excavated for a graveyard used on-set of the popular BBC police series "Bergerac," according to the paper.

Investigators at first thought they had stumbled on mass graves.

During filming of the program, which starred John Nettles as the lead Jim Bergerac, crews hollowed out ditches that were 6 feet deep and dotted the field with fiberglass tombstones to create a makeshift cemetery, according to the Mail.

Fiberglass skeletons were also used during the shooting of one episode.

Meanwhile, the investigation expanded Wednesday as more people came forward to claim they were abused by staff at Haut de la Garenne.

Former resident Carl Denning said he was mistreated there and at two other homes, the paper reported.

The children's home is no longer in operation. A youth hostel has replaced it.

The remains of one child were found on the premises last month. Police launched an investigation in the fall into allegations of widespread abuse at Haut de la Garenne.